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Blossoms
In impressive pictures several interesting biological topics are conveyed by this film: knowledge of the structure of blossoms, their variety of forms as well as significance and purpose of their colours and scents. Thus it becomes comprehensible why blossoms are so differently structured, how self pollination is avoided and which evolutionary achievement is behind the symbiotic interaction between blossoms and pollinators. Pollination is a “deal“: the plant offers the insects nectar in exchange for the transport of the pollen. Prerequisite for this is the mutual adaptation process of the blossom to the mouthparts of the insect and vice versa. That cheating goes on during this “business relationship” between plant and animal is illustrated with the example of flower mimesis. The perfect way in which blossoms succeed in attracting insects without offering them nectar in return is another highlight of this film. Together with the extensive accompanying material the DVD is perfectly suited for use in the classroom.
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New Species in our Environment
More and more animal and plant species successfully spread far away from their original homes. They are organisms that with our assistance – or even alone – are disseminated further and further across the globe: they are called invasive species.
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Artensterben
Das ökologische Gleichgewicht der Erde ist nachhaltig gestört. Ein erhebliches Ausmaß an Artensterben ist zu beobachten. Die Gründe sind zahlreich und sowohl mit dem natürlichen Kreislauf als auch mit den Eingriffen des Menschen in die Natur verknüpft.
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Pubertät
Die Zeit zwischen Mädchen und Frau, zwischen Junge und Mann ist aufregend und extrem. Mal geht es auf, dann wieder ab. Es ist eine Zeit der Gegensätze und Launen, Irrungen und Wirrungen. Man nennt sie: Pubertät. Biologisch zeichnet sich die Pubertät durch die Veränderung der primären und sekundären Geschlechtsmerkmale aus. Der Reifeprozess verläuft bei Mädchen und Jungen unterschiedlich. Wenn Kinder in die Pubertät kommen, entsteht im Gehirn eine neue Ordnung. Früher dachte man, dass das Gehirn im Alter von sechs Jahren ausgebildet sei. Heute weiß man, dass das Gehirn während der Pubertät noch einmal ganz neu umstrukturiert wird. Die Meinung der Erwachsenen wird plötzlich nur noch sehr ungern akzeptiert. Dafür suchen Jugendliche nun verstärkt Rückhalt bei Gleichaltrigen. Unser Unterrichtsfilm zeigt die Erfahrungen von Mädchen und Jungen sowie Eltern auf.
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Enzymes
Almost every biochemical reaction in living organisms is regulated and controlled by enzymes. Without enzymes we could not breathe, digest food and the hereditary information in our cells could not be repaired and copied.
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Human Liver
Normally you do not feel it, it does not beat like the heart, neither can we feel it like the lungs when we breathe in and out – nevertheless, it is one of our most important organs: the liver.
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Heath
One of the last big heathland areas in Germany is located west of the Lower Saxon town of Lüneburg – the Lüneburg Heath Nature Reserve.
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Amphibians
More than 350 million years ago, the evolution of amphibians set in. Amphibians developed from fish – a first step towards life on land. Diverse reproduction strategies, manifold forms of appearance and a broad spectrum of sizes, ranging from the tiny Brazil litter frog to the giant salamander, constitute the special characteristics of the class of amphibians. The pupils learn about the different respiration techniques and the particularities of the amphibians’ circulatory system as well as about their defining characteristics and their repro- duction strategies. Moreover, the threat to amphibian species posed by environ- mental poisons and the climate change is also discussed. This DVD leads the pupils into the fascinating, unknown world of amphibians, which still remains to be fully researched.
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Spiders
Spiders evoke fear and disgust with many people. Spiders living in or near houses are often killed by humans or vacuumed away with their vacuum cleaners. But that does not need to happen! Spiders contribute to the biological balance by eating mosquitoes, flies and other pests. A world without spiders would be scary! The film covers in detail and explains the zoological classification of spiders, their characteristics, food and hunting techniques, their different habitats as well as reproduction and brood care. Spectacular shots of spiders make the film a thrilling experience and reveal what we have never seen before in the hidden world of spiders.
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Basics of BIOLOGY I
Basics of Biology examines general biological issues that help to expand and consolidate basic biological knowledge. The first film of this series deals with the structure of the plant cell. It centres around the structure and function of plant tissue such as the xylem, root cells and stomata as well as the functions of the chloroplasts. In the second chapter the issue of photosynthesis and the elements involved in it are dealt with. With tests and experiments impacts of light and CO2 on photosynthesis are demonstrated and explained. The third part explains human respiration. The rising oxygen consumption of a woman athlete brought on by physical effort on the moving walkway is shown. What happens when the physical stress becomes too strong and the amount of oxygen inhaled is no longer sufficient? The transition from aerobic respiration to anaerobic respiration is vividly illustrated. Together with the extensive accompanying material the didactic DVD is ideally suited for use in the classroom.
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Infections
’Health isn’t everything but everything is nothing without health.‘ – This clever sentence comes from the German philosopher Arthur Schopenhauer. Since the introduction of antibiotics we are hardly aware of infectious diseases as a threat to our health anymore. However, how important successful prevention and therapy are is shown in the fact that in Germany alone about 50,000 deaths are caused by infectious diseases every year. Infections are the second most common cause of death worldwide. According to an estimate of the World Health Organisation more than 30% of deaths worldwide are related to infectious diseases. Most of them affect people in poorer countries and over 15 million people die of infections worldwide.
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Mücken
Stechmücken, Schnaken, Gnitzen und 40 Mückenfamilien mehr bevölkern unsere Erde. Während sie uns an einem lauen Sommerabend voraussichtlich nur lästig erscheinen, sind sie seit rund 120 Millionen Jahren ein wichtiger Bestandteil unseres Ökosystems.
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